IncI1, IncHI2, F and N schemes: developed by Aurora García-Fernández and Alessandra Carattoli, Istituto Superiore di Sanità, Rome, Italy (funded by the European Commission and the Italian Ministry of Research and University). Curated by Alessandra Carattoli.

IncHI1 scheme: developed by Minh-Duy Phan and John Wain when they were at The Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK. Curated by Minh-Duy Phan.

IncA/C scheme: developed by Steven Hancock, Minh-Duy Phan and Mark Schembri at The University of Queensland, Brisbane, Australia. Curated by Steven Hancock and Minh-Duy Phan.